CurseForge · Minecraft mod
String Dupers Return
Brings back the functionality of traditional string dupers in 1.21.2+
Quick answer
Which String Dupers Return release matches 1.21.7 Fabric?
String Dupers Return StringDupersReturn-1.0-Fabric-1.21.7.jar targets 1.21.7 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is String Dupers Return required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does String Dupers Return StringDupersReturn-1.0-Fabric-1.21.7.jar need?
StringDupersReturn-1.0-Fabric-1.21.7.jar on 1.21.7 Fabric. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add String Dupers Return without breaking your instance.
Built for String Dupers Return StringDupersReturn-1.0-Fabric-1.21.7.jar on 1.21.7 Fabric. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use StringDupersReturn-1.0-Fabric-1.21.7.jar. It targets 1.21.7 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside StringDupersReturn-1.0-Fabric-1.21.7.jar. It opens that exact file at the source.
About this project
What does String Dupers Return add?
Reverses the change in 1.21.2 that broke string dupers.
Please report any bugs on the issue tracker.
Tested on: Fabric
This mod is server-side, meaning the client doesn't need it installed to work. (But it still works in singleplayer!)
It is not limited to these! It should work on any server software with one of these as an ancestor.
Fabric versions work **exactly** like traditional string dupers, meaning they are still directional and must be sheared.
Project description from CurseForge.
Pick your setup
String Dupers Return by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
1 loader build26.1.2
1 loader build26.1.1
1 loader build26.1
1 loader build1.21.11
1 loader build1.21.10
1 loader build1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader buildShowing the newest 12 of 15 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
String Dupers Return versions and loaders
StringDupersReturn-1.0-Fabric-1.21.7.jar
12 Dec 2025
Looking for an older file? The official CurseForge project page is in Resources.